"Oh man!" you gasp, writhing and twisting. The sight of him changing, his enormous, shorts-stretching hard-on, and the feelings flooding your body are too much for you. Dropping to your hands and knees, you push back with your butt - muscles straining, pants stretching tight as you feel your spine stretching and pressing on the back of your pants. You realize what you are doing and you get on your knees and Jump back to your feet and stand up tall but it is too late. your tail is already 6 inches long and stretches your pants tight. you strain to hold it in but inch by inch it stretches your pants tighter. First inside your pants you feel your undies strain then tearing open right down the middle. Then you feel the urge to bend over again this time you simply have to. You strain a moment then you Relent bending over and then it happens. With a loud tearing sound your pants split open top to bottom in the back. You tail pops free and its 2 foot length surges into view. Terror fills your eyes as you stand back up.
The other boy start laughing at you hard. "Oh I can't believe the look on your Face! HA HA HA HA HA HA HA HA HA HA!" He says snorting loudly. "That look never gets old! HA HA HA HA HAW HAW HAW HAW HAW HAW! I see you now have something to tail people about this place now! HAW HAW HAW HAW HAW HAW HAW HAW HAW HAW! Tail any good stories lately! HAW HAW HAW HAAAAW HEEEEE HAAAAW HEEEE HAAAW!" He smirks. "Oh I can't laugh right anymore looks like my fever is getting worse! Don't worry you'll start that too soon!" His bulge in his boxers has gotten simple huge now as he paces around you. "Come on man give in to the joy of the change!"
You notice he has kicked off his shoes now and is walking about on his toes. At first the sound is soft followed by a clicking sound ending into a loud clopping sound. Looking at his feet you see they have become hooves.